| 时间域谱激电法在寻找石墨矿中的应用效果 |
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| 引用本文： | 王绵龄,胡正明.时间域谱激电法在寻找石墨矿中的应用效果[J].物探与化探,1987,11(6):422-427. |
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| 作者姓名： | 王绵龄 胡正明 |
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| 作者单位： | 国家建材局地质公司安徽地质勘探大队
(王绵龄)，国家建材局地质公司安徽地质勘探大队(胡正明) |
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| 摘 要： | 本文概述了重复的方块脉冲电流的时间域测量得到的宽带信息求取Cole-Cole参数的方法.并介绍了安徽某石墨矿带在没有自电或充电率异常但有值异常的位置上,经钻探见到了石墨矿.解释为极化体埋藏深且电阻率很小之故.认为该法对发现深埋藏的极化体和良导极化体是有效的,可弥补自电和常规时间域激电法的不足.在该区值很大的异常上,均见到了质量较好的石墨矿,而充电率大但时间常数不大的异常均为石墨矿化所引起.
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THE EFFECTS OF APPLYING TIME DOMAINSPECTRAL IP METHOD TO THE PROSPECTINGFOR GRAPHITE ORE DEPOSITS |
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| Institution: | Geological Exploration Party of Anhui Province, Geological Corporationof National Bureau of Building Materials |
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| Abstract: | This paper gives a generalized account of the method for figuring nut G.ole Cole paiameters from the broad-band information obtained from time domain measurement of repeated block pulse electric current. It also reports the disco very of a graphite deposit by drilling at the position where no self-potential anomalies or charging rate anomalies are observed but a value anomalies do exist. This is probably caused by the great buried depth of the polarized body and the extremely small resistivity. It is considered that this method is effec tive in detecting deep-buried polarized bodies, and thus can be used to remedy the defects of self potential method and traditional time domain IP method.Graphite ores of relatively good quality are seen on all anomalies with ex ceedingly large a values; anomalies with large charging rate but moderate time constant result unxccptionally from graphite mineralization. |
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